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Hi Guys,
I'm trying to repair an old gameboy,. Doesn't power on (red light on but nothing else). But then if I short the vcc and gnd on the dmg conv power board it beeps and boots a game and works normally!
I have tried another dmg conv board - same issue. Have replaced the 6 caps on the dmg cpu board, checked board for broken traces or damage..seems ok. Is there anything else I can try? Thanks

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NUMBSKULL

How are you powering it? Are your batteries fresh? Try using a power adapter.

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Australia

Check the R/C network on the reset line of the CPU. Sounds like the CPU isn't being reset properly at startup.